.Map :: MoHAA Mapping

i try to start up my map and i get this error

there is nothing in the tutorials about that i have no idea how

how do i make an .scr file

not exactly the same he has other files and i dont know what todo and when i rename my winzip thing to mapname.pk3 nothing happens

i have a .map, .bsp .vis .Mohlight and im making a tdm map but i cant figure out what to do next